Pumping-jack multiplier, swing, and hold-up



Feb. 10, 1931.

B. 'G. GOBLE PUMPING JACK MULTIPLIER, SWING, AND HOLD-UP .Filed Deo. 31, 1926 D ab,

2 sheets-sheet 1 Invenlor 55er G, @aan Horne y Feb. 10, 1931. n BQ G, GOBLE 1,792,297

. *it* PUMPING JA'CK MULTIPLIER, SWING, AND HOLD-UP Filed Dec. 51, 1926 sheets-sheet 2 i lnventor 'B 55H7' G. 605m .Mm A llorny `lglanlzented Feb. 1.0, 193.1y d.

Y UNITED STATES Y `BERT G VGOBLn or TULSA, OKLAHOMA, AssIcNoR To W. A'. VQIIIGLEY Y y PUMPING-:rack mumrrunnfswrne; AND HOLD-jur y@ l applicaties mea Deeember 31,1926. serieu 110.158,247. fi. f

This invention relates to an improved multiplier, Vswing and. hold-up for shackle rod f lines such as are used in the oil fields.

` velement or chain to run in whereby the leverage point, relative to the pivot point, will vbe varied and keep the leverage point in the right position relative toV the fulcrum.

Another object is to provide a multiplier Y j which may be used as ahold-up, for instance, where the shackle line starts down a hill.

The multiplier may be` used as a hold-upand thereby take the weight of the line'off l5 of the posts and to reduce or to increase the length of stroke and also may be used either in ahorizontal or a vertical position. 'v Further objects and adjustments will become apparent as the description proceeds.

Fig. 1 is av side view of my vertical multiplier showing the curved casting 18 whereby the length of the leverage stroke is varied as well as'its point of application. This gure also shows its adjustable hold-up.

line 2-2 of Fig. 1 showing the adjustable bearing used by the outgoing shackle rod.

' Fig. 3 shows a view taken on line 3 3 of Fig. 1.

3c Fig. 4 shows an enlarged view of the top portion of the adjustable hold-up. Y

Fig. 5 shows a modification of my invention in which the main fulcrum for the cross vmember-is pivoted to a vertical pivot'.

Fig. 6 shows a view on line 6-6 of Fig. 5, showing thedetails of the spherical brace 41.

Fig. 7 is 'a modication of myk invention wherein the pull is completely reversed. Y Referring lnowin detail to the drawings, Fig. 1 shows a member 15 pivoted on a bearing 13. Braces 14 and 16 are rigidly connected with the member. 15 as clearly shown in Fig. 1. An arm17 protrudes out from brace 14 and has a. series of holes by means of whichthe curved casting 18 is adjustably connected to it, the other end of this casting being supported by the brace 16.

Chain 26 is pivotally mounted to this cast- -ing 18 so that the chain abuts the curved surface of the casting as the entire frame is oscilj Y j Y means ofthe clamp-21.V A very importantV object of this invention .f5 isto provide a curved pathfor the pulling e f mounted on 27. Y

As shown in Fig. 4, casting 28 is bolted to 6.0

Fig. 2 shows a cross sectional view on thev 'mounted in any af the several leales at .the

lated above itspivotf13'.'y Theotlier end of l", the chainis fastenedto the shacklerod20llby This incoming lineY from the power (not shown) isV supported by means of a hold-upt consistingl of lower ,part 27g` fastened to a Y' casting 30,{which forms a pivotpoint and an upper .slide lpart 27, which is adjustably the upper part of 27, `shackle rod 20`being `firmly held in a clamp, this clamp being designated 29 as shown in Fig. 4. The out-going shackle rod-22 is fastened to a T-bearing 23 pivot-ally supported in bearing 24, said bear- Y ing being adjustablygheld on member 14by Y bolts 25.

Fig. 2 showsthe details of this connection. Referring now tothe modification shown in Figs. 5 and 6, 31 indicated a concrete foundation having the I-beam 40 rigidly embedded therein. Y 1

Bearings 34 are fastened to this I-beam. The main cross arm 32 has a journal 33 rigid therewith which Voscillates in these bearings. Braces 35 and 36 are pivoted to arm 32 and have several holes at their outer ends, whereby the curved casting member 37 may be attached thereto in a number of different positions. This curved casting is further supported 'by means of adjustable pull brace 38.

Chain 261 is fastened to one endV of the curvedcasting member by means of a shackle Y 'clamp 37A. The other end of the chainv may be .connected tothe shackle rod line. l S5 The main fulcrum member 32 has a series rigidly embedded.

A triangular shaped frame is'composed of the main fulorum member 42, braces 43V and 44, and curved casting 45 `is adjustably wie.:

i' p Y Y* 51,792,297V

ends-of these braces as clearly shown inFig. 7. The usual chain 262 is fastenedto casting v 45. This triangular shaped frameis pivoted to the I-beam 46V by means of journall 331 and bearing 341. The out-going shackleline`(not shown) is fastened to the T-bearing 232, v Which'lis held inthe adj ust'ablebearing` 392. VIclaim'r-- I A '1. A multiplier consisting of a bearing, Vmember piietel thereon, braces fastened te the member and means on the braces for connecting them to pulling elements, said braces,V member and means all being on one`sic le, With reference to afvefrlticalplaneg' of "fthe bearing axis. i'

als() "having a counterveightfastened on the InembenV and. vthe incoming pulling element .Q 'arranged 'to act in 'the "same-'clirection about Y 20 the said bearing as the count'e'rweigfht.V

In testimony Wherecf lljani'xiny signature. i BERT GGBLE. p

` 2. A multiplier asset forth claim l'vbut l" i l 

